/*
 * Copyright (C) 2005-2011 MaNGOS <http://www.getmangos.com/>
 *
 * Copyright (C) 2008-2011 Trinity <http://www.trinitycore.org/>
 *
 * Copyright (C) 2010-2011 ProjectSkyfire <http://www.projectskyfire.org/>
 * 
 * Copyright (C) 2011 ArkCORE <http://www.arkania.net/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef ARKCORE_DESTINATION_HOLDER_H
#define ARKCORE_DESTINATION_HOLDER_H

#include "Define.h"
#include "Timer.h"

class WorldObject;
class Map;

#define TRAVELLER_UPDATE_INTERVAL  300

template<typename TRAVELLER>
class DestinationHolder {
	TimeTrackerSmall i_tracker;
	uint32 i_totalTravelTime;
	uint32 i_timeElapsed;
	bool i_destSet;
	float i_fromX, i_fromY, i_fromZ;
	float i_destX, i_destY, i_destZ;

public:
	DestinationHolder() :
			i_tracker(TRAVELLER_UPDATE_INTERVAL), i_totalTravelTime(0), i_timeElapsed(
					0), i_destSet(false), i_fromX(0), i_fromY(0), i_fromZ(0), i_destX(
					0), i_destY(0), i_destZ(0) {
	}

	uint32 SetDestination(TRAVELLER &traveller, float dest_x, float dest_y,
			float dest_z, bool sendMove = true);
	void GetDestination(float &x, float &y, float &z) const {
		x = i_destX;
		y = i_destY;
		z = i_destZ;
	}
	bool UpdateExpired(void) const {
		return i_tracker.Passed();
	}
	void ResetUpdate(uint32 t = TRAVELLER_UPDATE_INTERVAL) {
		i_tracker.Reset(t);
	}
	uint32 GetTotalTravelTime(void) const {
		return i_totalTravelTime;
	}
	void IncreaseTravelTime(uint32 increment) {
		i_totalTravelTime += increment;
	}
	void ResetTravelTime() {
		i_totalTravelTime = 0;
	}
	bool HasDestination(void) const {
		return i_destSet;
	}
	float GetDestinationDiff(float x, float y, float z) const;
	bool HasArrived(void) const {
		return (i_totalTravelTime == 0 || i_timeElapsed >= i_totalTravelTime);
	}
	bool UpdateTraveller(TRAVELLER &traveller, uint32 diff,
			bool micro_movement = false);
	uint32 StartTravel(TRAVELLER &traveller, bool sendMove = true);
	void GetLocationNow(const Map * map, float &x, float &y, float &z,
			bool is3D = false) const;
	void GetLocationNowNoMicroMovement(float &x, float &y, float &z) const; // For use without micro movement
	float GetDistance3dFromDestSq(const WorldObject &obj) const;

private:
	void _findOffSetPoint(float x1, float y1, float x2, float y2, float offset,
			float &x, float &y);
};
#endif
